出自先秦《荀子·性恶》引古语。不知儿子的为人，看看他的朋友就清楚了；不知国君是否贤明，看看他左右的大臣是什么德行就知道了。
Small changes in material design can lead to massive reductions in environmental impact.
Profit without purpose is empty; purpose without profit is unsustainable.
Today is cruel, tomorrow is crueler, and the day after tomorrow is beautiful, but most people will die tomorrow night and won't see the sun of the day after tomorrow.
Data, algorithms, and computing power are the three pillars of AI development.
The universe is not only stranger than we imagine, it is stranger than we can imagine.